It s not hard just have to move a few things out the way just to get your hands to fit.
E46 vacuum control valve.
Shows how to remove your icv.
Buy vacuum pressure control valve 11747810831 1174 781 0831 for bmw mini e36 e46 x5 e70 e91 r60z1 e90.
I ve tried cleaning the maf sensor intake filter injectors checked for vacuum leaks and added in octane booster crappy ca 91 gas here but my idle was still giving me.
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Also when the engine and ignition are off the valve in the control switch the one under the manifold appears to be open the line between the check valve and the vacuum switch holds neither vaccum nor pressure when applied with a vacuum test pump which according to bavauto s instructions should not be the case.
Follow up video on the po411 lean code and check engine light.
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If you re running into idling issues on your e46 m3 a dirty throttle body or idle control valve icv may be the problem.
Diy on my 2002 330i.
This video is about fixing vacuum leaks and doing some maintenance on my 2002 bmw e46 330ci.
In this video i will go over fixing the major vacuum leaks that.